Water tank for concrete mixers



Nov. 22, 19 2. I E ERT 7 1,888,551

' WATER TANK F OR CONCRETE MIXERS Filed July 10, 1951 2 Sheets-Sheet 1 mil 3 nnentor A44, attorney I Nov. 22, 1932. J. EGGERT ,88

WATER TANK F OR CONCRETE MIXERS Filed July 10, 1951 2 Sheets-Sheet 2 l'mventor JOSEPH EGGERT AH (Ittorneg 5 Patented Nov. 22, i932 UNITED STATES JOSEPH EGGEB'I', OI GOL'UDUS, OHIO, ASSIGNOH TO THE JAEGEB OI COLUMBUS, OHIO, A. CORPORATION-OI OHIO PATENT OFFICE connm' warms iron conoamn Application filed July 10, 1981. Serial No. 0, 81.

This invention relates to water tanks for concrete mixers and particularly to such as are used on truck mixers. One object of the invention is to provide improved means 6 whereby a measured quantity of water can be withdrawn from the tank. Another object is I to provide improved means for locking the water su ply opening while discharging the water. other object is to provide a tank 10 in which there is a separate chamber for a mixer flushing supply of water independent ,of the main suppl said separate chamber also having means fbr preventing water from being supplied thereto during its discharge.

16' Other objects will appear from the disclosure herein. The invention is embodied in the example herein shown and described, the'features of novel being finally claimed.

In t e accompanying drawings Figure 1 is a view in side elevation of the tank according to the invention applied to a tank mixer.

Fig. 2 is a view of the tank on a larger scale 25 partly in section, removed from the truck mixer. Fig. 3 is a view looking at the right hand end of Fig. 2 witha portion of the end broken outshowing some interior details. so Fig. 4 is a section on the line '2 with some parts in full.

Fig. 5 is atplan view of the covers for the charging openings to thetwo compartments of the water tank.

35 In the views designates a mixing drum shown as mounted to turn on a horizontal axis on -a transportin truck. The mixing drum is of the species w ich mixes the concrete materials by rotation of the drum in one direction 40 and discharges by rotation in the opposite direction. Details of such a truck concrete mixer are shown in the application of J aeger and Eggert, filed April 9, 1931, Ser. No. 528,806 and need not be described more par 45 ticularly herein.

IV-IV Fig.

The tank for supplying water to the concrete materials within the drum includes the following parts, to wit: A cylindrical vessel or tank 11 is supported in an elevated position on the-chassis orward of the front end of the mixing drum 10. Said vessel is divided into a lar and a small'compartment by a vertical partition 12. The large compartment which supplies water for the concrete mixture in the drum communicates with the interior of the 56 mixin drum throu h a pipe 13 entering the axis 0 said drum. he smaller compartment for supplying flushing .water communicates with the interlor of the mixing drum through the same pipe 13, there being an external cross pipe 14 connectin the dischar es of the two com artments so t at both lea into the mixing rum.

The discharge of'the larger compartment 'is controlled by .a valve 15 above the inletof the cross Pi 14 to the pipe 13; and the discharge 0 th: smaller compartment as controlled by a valve 16, sothat water ma be discharged from either compartment wit out dischar 'ng it from the other.

. 7,0 The c arging openings for'the tanks at 17 and 18 are closed by covers 19 and 20 carried I b; a single arm 21 s'wingin on a handled stem 2 Said stem 22 is threa ed at its lower end in a fixed nut 23 at the top of a pair of perforated ears and said stem is limited in movement by a-nut 25 on the lower endof. the threaded ortion .of the stem. 'On the stem above the xed threaded nut 23 is a coil spring 26 tending to lift the arm 21 against 'a fixed 'sto nut 27 above the armand the covers ofl thelr seats when the threadedfstem'i s turned in the proper direction. .When the arm-21 is so lifted it can, if not-otherwise locked as hereinafter described, be turned on the'stem to remove the covers from above the charging openings.

The stem 16 carrying the valve 16'is long I i and rests at its lower end in a cu 27 on the upper end of a threaded stem of a and wheel 28 so that by turning said wheel in the proper direction said stein 16 can be raised to lift the valve 16 ofi its seat to cause the discharge of water from the smaller compartment of the tank. When the hand wheel is turned to raise the valve 16, and the coverat the top is closed, the upper end of the stem l6 -enters the hole 21 in the arm to a sufiicient extent nected with the end of a crank 'arm 32 on a shaft 33 that extends througha pipe to the exterior of the tank. At its external end the shaft 33 has a crank arm 34 for raising and lowering the valve through the connections described with the stem of said valve. The

weightof the lever 30, the .valve. rod and their connections are supplemented by-a spring 35 to aid in holding the valve 15 closed. The aforesaid connections can be made sufficiently loose to allow for curvilinear motions in places where such occur. The crank arm 34 is supported in the opened and closed positions of the valve 15 by means of a pin 36 "sliding in a tube and provided with handle, form'ov- 'ing it against a spring 37 from a path of. said crank arm 34 when it is shifted to openthe valve 15 or to permit the same to be closed. Secured around the disc argevof the larger compartment is an extensible conductor 38 made preferably of flexible rubber in corrugated or accordion form so as to be collapsible.

The conductor'38" is attached at its upper end to a metallic guide block; sliding on the ends connected with crank arms 4Q on the end valve stem, said guide block provided with clamping means for engaging the upper end of the conducton Attached to the guide block is a pair of links 39 having their other of a tubular shaft 41 (see Fig. 4) in the stationaryhousing shaft 42. Said tubular shaft 41 works around the valve operating shaft also within said housing shaft, and said tubu- V larshaft 41*extends through the head of the tank, itbeing provided at' its external end with an operating crank arm '.43 provided with a knob for conveniently moving it. Said crank 43 works over an arcuate strip 44 marked with a scale to indicate the height to which the accordion conductor is raised and therefore the uantit f w te th t b q y 0 a r a can mixer including a tank provlded with a 5 taken from a full tank compartment when prior known or given withdrawals.

Su ported on the lever 30 5 having its shank extended into a hole is a headed pin the top of the tank in line with the hole 21 on the arm carrying cover 19 so that when the valve 15 is raised to discharge water the arm 21 cannot be operated toremove the cover of the charging openings to either the small or large compartment. It will thus be seen that workmen to prevent them from putting into the concrete mixer more or less waterthan the specifications call for.

47 designates an overflow pipe for fixing the quantity to be supplied to the larger compartment; and 48 is a bafiie to prevent undue splashing or agitation of the water when the truck mixer is in transit over rough roads.

The forms of the, parts can be changed without departing from the gist of the invention as claimed.

What I claim is: 1. Means vfor supplying water to a concrete mixer including a tank provided with a discharge opening to the mixer, a valve for said discharge,.a collapsible conductor within the tank communicating with said dis-' charge, and means external to the tank for moving said conductor to efi'ectthe removal of the desired portion of water'for the mixer from the tank.

2.,Means'for supplying water. to a concrete mixer including a tank provided with a discharge opening to-the mixer, a valve for said discharge, a collapsible conductor" within "the tank communicating with said discharge and means external to the tank for moving said conductor to effect the removal of a desired portion of water forthe mixer'from the tank, and means for latch- 'ing said means in the opened position of said valve.

Y 3. Means for supplying water to a concrete mixer including a tank provided with a discharge opening to the mixer, a valve for said discharge,'a collapsible conductor consisting of a flexible tube within the tank communicating with saidi discharge, and means external to the tank for moving said con-L ductor to effect the removal of the desired portion of water for the mixer from the tank.

4. Means for supplying water to a concrete charging opening and a discharge opening, a closure for the charging opening and a valve for the discharging opening, means for actuating said valve at will to open the discharge and means actua table by the valve to lock the charging closure when the discharge is opened.

5. Means for supplying water to a concrete mixer including a tank having two water containing compartments each having a charging and discharging opening and valves for the discharge openings, means for actuating either of said valves at will, closures for said charging openings, and means actuated by either valve for locking both said closures in closing position.

6. Means for supplying water to aconcrete mixer including a tank having two water containing compartments, each provided with a charging opening and each provided with a discharging opening and a valve therefor, closure means for said charging openings and means for preventing the removal of either of said closures when one of said valves is opened to discharge'water.

7 Means for supplying water to a concrete mixer,'including a tank provided with a charging opening and a closure therefor, and a discharge opening to the mixer provided with a valve having a stem, means external of the tank for actuating said valve and stem, and means whereby said stem causes the locking of the closure of the charging opening when the valve is in open position.

8. Means for supplying water to a concrete mixer including a tank provided with a charging opening and closure means there for, and a discharge opening to the mixer provided with a valve having a stem and means whereby said stem engages the closure means to lock the closure from removal when said valve is in open position.

9. Means for supplying water to a concrete mixer including a tank provided with a charging opening and closure means therefor, and a discharge opening to the mixerprovided with a valve having a stem, said stem being movable independently of the valve, means external to the tank for operating said stem and means whereby said stem engages the closure means to lock the closure from removal when said valve is in open'po- SltlOIl. f I I 10. In water measuring 'andffitfiplyajiparatus for concrete mixers, a receptacle; a supply conduit for said receptacle; a discharge conduit leading from said receptacle; and flexible extensible means for varying the length of the intake portion of said discharge conduit for controlling the ,quantity of water it may discharge from said receptacle.

11. In water measuring and supply apparatus for concrete mixers, a receptacle; a supply conduit for said receptacle; a dis charge conduit leading from said receptacle, having a flexible extensible intake extension; and means for longitudinally adjusting said flexible extension to control the quantity of JOSEPH EGGERT. 

